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    	【Docker】更新docker镜像源
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				<span class="zhaiyao">[摘要]</span>
			<p>使用 docker 拉取 Docker Hub 上镜像时，可能会由于网络限制，导致下载失败。可以将 docker 的镜像源设置为国内的镜像，<br>
目前支持的镜像源有<a href="https://cr.console.aliyun.com/cn-hangzhou/mirrors" target="_blank" rel="noopener">阿里云</a>和<a href="https://www.docker-cn.com" target="_blank" rel="noopener">docker 中文站</a></p>
<a id="more"></a>
<p>1.获取个人加速地址：</p>
<p><a href="https://cr.console.aliyun.com/cn-hangzhou/mirrors" target="_blank" rel="noopener">阿里云镜像加速器</a></p>
<p>2.配置镜像加速器</p>
<blockquote>
<p>针对 Docker 客户端版本大于 1.10.0 的用户</p>
</blockquote>
<p>修改 daemon 配置文件<code>/etc/docker/daemon.json</code>来使用加速器</p>
<p>(1)创建<code>/etc/docker</code>目录(如果不存在的话)</p>
<p><code>sudo mkdir -p /etc/docker</code></p>
<p>(2)修改配置文件<code>/etc/docker/daemon.json</code></p>
<p>[阿里云]：</p>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">// 文件位置: /etc/docker/daemon.json</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"registry-mirrors"</span>: [<span class="string">"https://y0qd3iq.mirror.aliyuncs.com"</span>]</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<p>[docker 中文站]：</p>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">// 文件位置: /etc/docker/daemon.json</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"registry-mirrors"</span>: [<span class="string">"https://registry.docker-cn.com"</span>]</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<p>3.重载守护进程文件，重启 docker</p>
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">sudo systemctl daemon-reload</span><br><span class="line">sudo systemctl restart docker</span><br></pre></td></tr></table></figure>
<p>4.查看加速器是否生效</p>
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">[root@txyun ~]<span class="comment"># docker info</span></span><br><span class="line"></span><br><span class="line">...</span><br><span class="line">Registry Mirrors:</span><br><span class="line"> https://y0qd36iq.mirror.aliyuncs.com</span><br><span class="line">...</span><br></pre></td></tr></table></figure>

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